1 /* 2 * Copyright (C) 2008 The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 17 /** 18 * One line from the loaded-classes file. 19 */ 20 class Record { 21 22 /** 23 * The delimiter character we use, {@code :}, conflicts with some other 24 * names. In that case, manually replace the delimiter with something else. 25 */ 26 private static final String[] REPLACE_CLASSES = { 27 "com.google.android.apps.maps:FriendService", 28 "com.google.android.apps.maps\\u003AFriendService", 29 "com.google.android.apps.maps:driveabout", 30 "com.google.android.apps.maps\\u003Adriveabout", 31 "com.google.android.apps.maps:GoogleLocationService", 32 "com.google.android.apps.maps\\u003AGoogleLocationService", 33 "com.google.android.apps.maps:LocationFriendService", 34 "com.google.android.apps.maps\\u003ALocationFriendService", 35 "com.google.android.apps.maps:MapsBackgroundService", 36 "com.google.android.apps.maps\\u003AMapsBackgroundService", 37 "com.google.android.apps.maps:NetworkLocationService", 38 "com.google.android.apps.maps\\u003ANetworkLocationService", 39 "com.android.chrome:sandboxed_process", 40 "com.android.chrome\\u003Asandboxed_process", 41 "com.android.fakeoemfeatures:background", 42 "com.android.fakeoemfeatures\\u003Abackground", 43 "com.android.fakeoemfeatures:core", 44 "com.android.fakeoemfeatures\\u003Acore", 45 "com.android.launcher:wallpaper_chooser", 46 "com.android.launcher\\u003Awallpaper_chooser", 47 "com.android.nfc:handover", 48 "com.android.nfc\\u003Ahandover", 49 "com.google.android.music:main", 50 "com.google.android.music\\u003Amain", 51 "com.google.android.music:ui", 52 "com.google.android.music\\u003Aui", 53 "com.google.android.setupwarlock:broker", 54 "com.google.android.setupwarlock\\u003Abroker", 55 "mobi.mgeek.TunnyBrowser:DolphinNotification", 56 "mobi.mgeek.TunnyBrowser\\u003ADolphinNotification", 57 "com.qo.android.sp.oem:Quickword", 58 "com.qo.android.sp.oem\\u003AQuickword", 59 "android:ui", 60 "android\\u003Aui", 61 "system:ui", 62 "system\\u003Aui", 63 }; 64 65 enum Type { 66 /** Start of initialization. */ 67 START_LOAD, 68 69 /** End of initialization. */ 70 END_LOAD, 71 72 /** Start of initialization. */ 73 START_INIT, 74 75 /** End of initialization. */ 76 END_INIT 77 } 78 79 /** Parent process ID. */ 80 final int ppid; 81 82 /** Process ID. */ 83 final int pid; 84 85 /** Thread ID. */ 86 final int tid; 87 88 /** Process name. */ 89 final String processName; 90 91 /** Class loader pointer. */ 92 final int classLoader; 93 94 /** Type of record. */ 95 final Type type; 96 97 /** Name of loaded class. */ 98 final String className; 99 100 /** Record time (ns). */ 101 final long time; 102 103 /** Source file line# */ 104 int sourceLineNumber; 105 106 /** 107 * Parses a line from the loaded-classes file. 108 */ Record(String line, int lineNum)109 Record(String line, int lineNum) { 110 char typeChar = line.charAt(0); 111 switch (typeChar) { 112 case '>': type = Type.START_LOAD; break; 113 case '<': type = Type.END_LOAD; break; 114 case '+': type = Type.START_INIT; break; 115 case '-': type = Type.END_INIT; break; 116 default: throw new AssertionError("Bad line: " + line); 117 } 118 119 sourceLineNumber = lineNum; 120 121 for (int i = 0; i < REPLACE_CLASSES.length; i+= 2) { 122 line = line.replace(REPLACE_CLASSES[i], REPLACE_CLASSES[i+1]); 123 } 124 125 line = line.substring(1); 126 String[] parts = line.split(":"); 127 128 ppid = Integer.parseInt(parts[0]); 129 pid = Integer.parseInt(parts[1]); 130 tid = Integer.parseInt(parts[2]); 131 132 processName = decode(parts[3]).intern(); 133 134 classLoader = Integer.parseInt(parts[4]); 135 className = vmTypeToLanguage(decode(parts[5])).intern(); 136 137 time = Long.parseLong(parts[6]); 138 } 139 140 /** 141 * Decode any escaping that may have been written to the log line. 142 * 143 * Supports unicode-style escaping: \\uXXXX = character in hex 144 * 145 * @param rawField the field as it was written into the log 146 * @result the same field with any escaped characters replaced 147 */ decode(String rawField)148 String decode(String rawField) { 149 String result = rawField; 150 int offset = result.indexOf("\\u"); 151 while (offset >= 0) { 152 String before = result.substring(0, offset); 153 String escaped = result.substring(offset+2, offset+6); 154 String after = result.substring(offset+6); 155 156 result = String.format("%s%c%s", before, Integer.parseInt(escaped, 16), after); 157 158 // find another but don't recurse 159 offset = result.indexOf("\\u", offset + 1); 160 } 161 return result; 162 } 163 164 /** 165 * Converts a VM-style name to a language-style name. 166 */ vmTypeToLanguage(String typeName)167 String vmTypeToLanguage(String typeName) { 168 // if the typename is (null), just return it as-is. This is probably in dexopt and 169 // will be discarded anyway. NOTE: This corresponds to the case in dalvik/vm/oo/Class.c 170 // where dvmLinkClass() returns false and we clean up and exit. 171 if ("(null)".equals(typeName)) { 172 return typeName; 173 } 174 175 if (!typeName.startsWith("L") || !typeName.endsWith(";") ) { 176 throw new AssertionError("Bad name: " + typeName + " in line " + sourceLineNumber); 177 } 178 179 typeName = typeName.substring(1, typeName.length() - 1); 180 return typeName.replace("/", "."); 181 } 182 } 183